211021202023 has 8 divisors (see below), whose sum is σ = 215530709760. Its totient is φ = 206512515000.

The previous prime is 211021202009. The next prime is 211021202027. The reversal of 211021202023 is 320202120112.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 211021202023 - 2⁹ = 211021201511 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 211021201988 and 211021202006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211021202027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 329268 + ... + 728326.

It is an arithmetic number, because the mean of its divisors is an integer number (26941338720).

Almost surely, 2^211021202023 is an apocalyptic number.

211021202023 is a deficient number, since it is larger than the sum of its proper divisors (4509507737).

211021202023 is a wasteful number, since it uses less digits than its factorization.

211021202023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410357.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 211021202023 its reverse (320202120112), we get a palindrome (531223322135).

The spelling of 211021202023 in words is "two hundred eleven billion, twenty-one million, two hundred two thousand, twenty-three".